High-speed ablation of ultradeep channels by a phase-conjugate dynamically controlled passively<i>Q</i>-switched Nd:YAG laser

Basiev, Tasoltan T.; Garnov, S. V.; Klimentov, S. M.; Pivovarov, P. A.; Gavrilov, Andrey V.; Smetanin, S. N.; Solokhin, S. A.; Федин, А. В.

doi:10.1070/qe2007v037n10abeh013624

Cited by 15 publications

(7 citation statements)

References 14 publications

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“…1. The laser multiloop cavities had an open output without an output coupling mirror, but the self-pumped four-wave-mixing phase-conjugate mirror in the active Nd:YAG element provided positive feedback for laser oscillation [3][4][5] . The laser schemes didn't contain a non-reciprocal transmission element 5,7,10 , but in some experiments we used a F 2 -:LiF crystal for a passive Q-switch 3,4 .…”

Section: Cavity Schemesmentioning

confidence: 99%

“…The development of powerful pulsed solid-state lasers with high spatial brightness is important because of their many possible applications, for example, in remote monitoring 1 , laser-induced breakdown spectroscopy 2 , and ultrahard material processing 3 . The use of laser diode pumping yields high laser efficiency, compactness, laser operation stability, and simplicity of exploitation.…”

Section: Introductionmentioning

confidence: 99%

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Passively Q-switched high-energy all-solid-state holographic Nd:YAG laser with a multiloop cavity

et al. 2015

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A high-energy, high-beam-quality laser based on a single Nd:YAG rod with laser diode side-pumping and multiloop self-adaptive reciprocal cavity is presented. The optimized laser cavity geometry allowed to change the laser oscillation from single 200-ns self-Q-switched pulse followed by low-intensity free-running lasing to repetitive high-intensive pulses by periodically writing and erasing holographic gain gratings in the active Nd:YAG medium. The intensified self-Q-switching pulse train oscillation was realized by the interaction with a diffusely reflecting target placed in the focal plane of a lens at the laser output. Effects of shortening of the repetitive laser pulses down to 70-ns duration, stabilization of the pulse repetition period (~ 5 µs), and mode-locking temporal modulation of the pulses were observed. The use of a passive F 2 -:LiF Q-switch resulted in stable giant pulse train oscillation with total output energy of up to 0.43 J, individual pulse energy of 50 mJ, and its peak power of 4 MW at the individual pulse duration of 12 ns.

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Section: Cavity Schemesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Passively Q-switched high-energy all-solid-state holographic Nd:YAG laser with a multiloop cavity

et al. 2015

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“…m P P m i m (12) where δ(t p ) has a physical sense of an effective thickness for plasma heating energy release inside the material during t p.…”

Section: Model Of Plasma Heating and Melting Of Side Wallsmentioning

confidence: 99%

Optimization of plasma effect in laser drilling of high aspect ratio microvias

et al. 2015

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The simple theoretical model of heating side walls by laser plasma in the laser drilling of high aspect ratio microvias in metals and semiconductors is proposed. According to this model the recommendations are given on how to avoid the undesirable effect of melting side walls by laser plasma, strongly deteriorating microdrilling quality. The obtained results constitute a physical basis for the development of clean laser microdrilling. Particular estimations are given for the laser drilling of silicon wafers.

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“…An importance to develop the powerful pulsed solid-state lasers with high spatial brightness is caused by many possibilities of its applications, for example, in the remote monitoring [1,2], the laser-induced breakdown spectroscopy [3,4], and the ultrahard material processing [5,6]. Use of diode pumping gives high laser efficiency, compactness, laser operation stability, and simplicity in exploitation.…”

Section: Introductionmentioning

confidence: 99%

High power Nd:YAG laser with self-pumped phase-conjugate loop cavity and repetitive pulsed diode-matrix side-pumping

Pogoda

Lebedeva

Yusupov

et al. 2013

XIX International Symposium on High-Power Laser Systems and Applications 2012

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The joule-range high-beam-quality Nd 3+ :YAG laser oscillation in the multiloop self-pumped phase-conjugate cavity without an output coupling mirror at four-wave mixing of intracavity beams directly in the 110-mm long Nd 3+ :YAG rod with 12.6 kW diode side-pumping is developed and studied. The oscillation efficiency of up to 18 % and average power of up to 22 W were achieved in the optimized geometry of the laser cavity at the 13.9 kW pumping with repetition rate of up to 20 Hz and pulse duration of up to 475 μs. The laser generated a single high-intensive 200-ns giant laser pulse (or series of such pulses with microsecond period at increased pumping) oscillated at self-Q-switch on gain gratings with relatively narrow linewidth of about 2 GHz followed by low-intensive free-running wideband lasing. We also realized a passive Q-switch by the F 2 -:LiF and Cr 4+ :YAG crystals with oscillation of pulse trains and also 30-ns single-pulse oscillation with an individual pulse energy of up to 60 mJ and peak power of up to 4 MW at narrowed laser spectra down to 1.7 GHz.

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High-speed ablation of ultradeep channels by a phase-conjugate dynamically controlled passivelyQ-switched Nd:YAG laser

Cited by 15 publications

References 14 publications

Passively Q-switched high-energy all-solid-state holographic Nd:YAG laser with a multiloop cavity

Passively Q-switched high-energy all-solid-state holographic Nd:YAG laser with a multiloop cavity

Optimization of plasma effect in laser drilling of high aspect ratio microvias

High power Nd:YAG laser with self-pumped phase-conjugate loop cavity and repetitive pulsed diode-matrix side-pumping

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